Combination-lock.



Ferdinand .Neubauer Patented Jan. 8, 1918.

F. NEUBAUER.

COMBINATION LOCK.

APPLICATION FILED SEPTA. 1917.

FERDINAND N'IEYUIBA'UEIR, 0F CLEVEL, OHIO.

COMBINATION-LOCK.

Specification of Letters Patent.

Patented Jan. 8, 19M.

Application led September 4, 1917. Serial No. 189,438.

To all whom t may concern.'

Be it known that I, FERDINAND NnuBAUER, citizen of the United States, reslding at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Comblnatlon- Locks, of which the following 1s a specification.

This invention relates to a comblnation lock, and the object ot' the invention 1s to equip a key with a permutation lock, whereby the key itself may be locked 1n an inoperative positionin an ordinary door lock or in any other lock or place where the lnvention may be of advantage. In the present instance thel invention is used in connection with a door-lock having afbolt, and the key must be shifted from a locked position to operate said bolt. Provision is also made to permit removal of this combined key and lock from the door, and if desired, to reverse the position of the key for placement in the door lock from the opposite side of the door.

In the accompanying drawing, Figure 1 is a side View of the combined lock and key and a vertical section through a portion of a door and a door lock, the key being locked on the door in an inoperative position. Fig. 2 is a sectional View through the door lock and a transverse section of the locking key on line 2 2, Fig. 1. Fig. 3 is a longitudinal section of the locking key, considerably enlarged. Fig. 4 is a horizontal section 1n plan on line 4 4, Fig. 1. Fig. 5 1s a transverse section of the locking collar for the key on line 5 5, Fig. 1, but with the key removed. Fig. 6 is a transverse section on line 6 6, Fig. 3.

The ordinary door lock is operated by a suitable key which may be inserted and removed at will through the key opening in the door, and I show such a door lock 2 mounted in a door 3 having escutcheon plates 4 with key holes through which a key may) be entered to engage and operate locking olt 5. This door lock and the specific formation of the bolt-engaging portion of the key may be constructed variously according to common practice, my invention residing more particularly in the key mechanism hereinafter described and as constructed and arranged to co-act with such locks. Thus, the key comprises a round shank or stem having a bolt operating blade of any sultable shape or form at one end thereof and an operating head'or finger grip 8 at the opposite end thereof. Stem 6 carries a set of separate sleeves 9, 10 and 11, adapted to be' rotated independently of stem 6 and each other, each sleeve having an indexed setting disk 12 firmly aixed thereto. 'These disks are arranged in close juxtaposition adjacent head 8 and each sleeve is provided with a longitudinal slot 13 extending from about the middle portion of the sleeve to the end thereof. These slots, when placed in register -by rotating the sleeves independently permit the key blade 7 to be drawn into the slots to the end thereof, but otherwise no such longitudinal movement of the stem and its blade can take place. For example, when the key occupies a position shown in Fig. 1, with the key blade 7 projected out of slots 13 and the slots out of register as shown in Fig. 2, it is obvious that locking bolt 5 cannot be engaged by the blade and that to operate said bolt it is necessary to grasp the head 8 and draw the stem 6 and its blade 7 outward or to the right as indicated in Fig.`

4, in order that blade 7 be placed in an acting position opposite bolt 5. To accomplish this result, the 'several sleeves are rotated to bring the slots 13 in register and each disk 12 is provided with suitable indices or marks which facilitate the setting of the parts by a person familiar with the combination, and the combination is easily changed by setting the disks in different radial positions relatively to each other, and locking them in such position by their respective set screws 14. Each disk is also provided with a spring-pressed ball 15 in one face adapted to occupy any one of the shallow concavities 16 formed at equidistant radial places in the opposite face of the adjacent disk, thereby rendering the manipulation and accurate setting of the respective disks an easy and convenient matter. The disk which lies adjacent the escutcheon plate 4 has its ball 15 adapted to work in the same way with shallow concavities in the face of said plate while head 8 may or may not be so equlpped with aball. Each sleeve is also provided with a shoulder portion 17 to prevent independent longitudinal movement of the sleeve relatively toveach other, and locking member 18, secures the sleeves and key jointly in placewithin the keyk hole of the door. This locking member comprises a collar having an opening 19 of key-hole shape, adapted to lit over and upon outer sleevell and to be locked in this position by a pivoted hand lever 2O which may be turned into or out of a notch 21 in said sleeve, seeA Fig. 3. Collar 18 is also equipped withv a cap 22 to inclose the blade end -of the key, and by unlocking collar 18 it may be detached from the sleeve and the loc ing key Withdrawn in its entirety through the key 'hole and bodily removed from the door lock,

as any ordinary key may be removed. On the lother hand, when the collar is locked upon the sleeve and is placed upon the in side of the door, the locking key lmay be left` permanently on the door and no one can operate the locking bolt .Without full knowledge ofV the combination necessary to set the disks and' place the slots 13 in register so that the key blade may be shifted into coacting position with the locking bolt. The

locking collar 18 may be substituted by any other equivalent locking member and the. `disks l2 may be fashioned differently and a greater or less number used than as shown,

4 Without departing from the spirit and scope of the invention. The disks and sleeves are in effect a permutation lock for the key, and the device may be embodied in a door lock or made and sold as a separate article for use with any lock as now found in a door or other object.

What I claim is:

1. A locking key for locks, comprising a A shifting key and a locking device therefor adapted to be jointly inserted and secured Within a key hole and lock Within a door or other object.

2. A door or other object having meansv rotate said sleeves to aline the slots and permit the key to slide therein.

5. A combination key for a lock, comprs- 7. A key having sleeves with index membersfand shiftable longitudinally in respect to said sleeves, and means to secure said sleeves in independent rotatable position Within a lock. y

8. A key having -a set of permutation locking members therefor, and means to secure said key and members jointly Within a key-opening in a lock.

9. A key embodying a ermutation locking device and a detacha le locking collar to secure the same -rotatably in position Within a key hole and lock. C

10. A key having a combination lock therefor, and a locking collar to secure the key and combination lock jointly Within a lock and key hole, said collar having a keyopening to permit the keyto be shifted axially of said parts.

l1. A lock having a bolt, in combination With a key to operate said bolt, and a permutation lock to secure said key in an inoperative position relatively to said bolt.

l2. A key .and permutation locking means to prevent axial movement of said key relatively to said means.

13. A key and a permutation lock for said key, and a locking member-to secure said key and lock jointly in place Within a keyhole of a door lock, and a cap to inclose one end of the key.

Signed at Cleveland, in the county of Cuyahoga, and State of Ohio, this 27th day of August, 1917.

FERDINAND NEUBAUER. 

